Welt laying and attaching machine.



A.'H. PRENZEL. WELT LAYING A-ND ATTACHING MACHINE. APPLICATIONFILEDAUGYJTE: 1913. 1,1 1 9., Patented June 8, 191,5.

3 SHEETS-SHEET 1.

H. PRENZEL. WELT LAYING AND ATTACHING MACHINE. APPLICATION FILED Aue.15.191s.

Patented J 11110 8, 1915.

3 SHEETS-SHEET 2- Al H. PRENZEL.

WELT LAYING AND ATTACHlNG MACHINE. APPLICATION FILED AUG.15. 1913.

1 1423 119., V Patented June 8, 1915.

' 3 SHEETSSHEET 3- iiDAfd H, PRENZEL, F HALIFAX, PENNSYLVANIA, ASSIGNORTO UNITED SHOE Application filed August 15, 1913.

To all one it may concern I Be it known that I, ADAM H. PREXZl-JL, acitizen of the United States, residing at anew, in the county of Dauphinand State i'ennsylvania, have invented certain new and usefulimprovements in Vlelt Laying and Attaching Machines; and 1 do herebydeclare the following to be a full, clear, and i let description of theinvention, such as ill enable others skilled in the art to which itappertains to make and use the same.

illiis invention relates to-welt laying and attaching machines and moreparticularly to such machines adapted to lay and attach a welt to anoutsole before it is incorporated in a shoe.

in the manufacture of some types of shoes, known generally as falseWelts, in which the shoe is so constructed as to give the ap- ""1pearance of being a Goodyear welt although some other method of makingit is.-

nsed, piece of welting is attached to the n'iargin of the cutsole on theflesh side or to the lasted ripper, prior to assembling the outsoie andupper. In some of these false Welt shoes the waiting extends merelyaround the forepart, as in a Goodyear welt shoe, While in otl-iers thewelting is continuous extending completely around the sole. In makingthe latter type of false welt shoe which may he termed a turn welt somediihculty has be n experienced in severing the strip of weaving in suchmanner that the meeting point on the sole between the two welt ends isinconspicuous The objects of the present invention are to overcome thisdiliiculty and to insure that a mininnnn amount of Welting is used in attaching a welt on any particular sole.

In accordance with these objects a feature of the invention contemplatesthe provision, in combination with suitable. devices or mechanism forattaching the waiting to the outsole. of means for supporting the soleand guiding the waiting, and a welt severing device, preferably arrangedand operating to sevoi'the welt strip on a bevel. such that the two endsof the portion of the welt at tachr-d to the sole will meet and presentto the eye a continuous and unbroken grain surface. I

A fiu'taer feature of the invention con- =euiplatci =c provision ofmeans for inditing to in. operative the time at which the welt stripshould be severed in order to CHL'NERY COMPANY, OF PATERSON, NEW JERSEY,A CORPORATION OF NEVT WELT LAYING AND ATTACHING MACHINE.

- Specification of Letters Patent.

- Patented June 8, 1915 Serial No. 784,908.

,use just the amount necessary to produce an exact meeting of the twowelt ends and thus avoid waste.

To the accomplishment of these objects and such others as mayhereinafter appear, as will readily'bc understood by those skilled inthe art, the invention comprises the features and combinations of partshereinafter described and then particularly pointed out in the appendedclaims.

In the preferred form of the invention the welting is secured to theoutsole by stitching and this form is illustrated in the accompanyingdrawings, in which:

Figure 1 is a front elevation of a portion of a solo sewing machineembodying the present invention, showing also a sole in po sition on thesole supporting table, and a pioce'of welting being led into positionbe-' neath the sole to be secured to its flesh side; Fig. 2 is a sideelevation of the parts shown in Fig. 1; Fig. 3 is a detailed view, inplan, of the parts forming the present invention, detached from the solesewing machine, showing also a sole, marked on its grain side, inposition to start the welt attaching operation Fig. 4; is a detail, inlongitudinal section, showing the mounting of the welt severing knife onthe sole support, and its operating mechanism; Fig. 5 is a detail, inlongitudinal section, through the adjusting devices for accommodatingvarying widths of welting and for guiding the sole so as to place theline of fastcnings relatively nearer to or farther from the edge of thesole; and Fig. dis a plan of a turn outsole, having an edge lip cut andupturned, with a continuous welt stitched in the angle between the lipand feather by a sole sewing machine having the present inventionincorporated therein.

The machine, in which the present invention has been embodied for thepurposes of illustration and explanation, is of thosame general type asthat shown and described in Letters Patent of the United States No.473,870, dated April 26, 1892, to The Goodyear Shoe Machinery Company ofHartford, Connecticut, on an application of Z. T. French and lV. C.Meyer. The curved hook needle 1, the presser foot 2, the awl'3, the awlsegment 4, the upright 5 carrying the awl segment and mounted on thefeed slide 6, and the feed changing lever 7 may be, and preferably aresubstantially as in the French and Meyer patent above referred. to. Theshank portion 8 of the work support, that is, the portion by which. itis secured. on the machine frame, is the same esin said Letters Patentof the United States hereinbefore referred to, but the Work supportitself has heenchanged so as to provide a suitable surface forsupporting the flat sole to which the Welt is to be attached and forhousing the knife by means of which the strip of Welting is severed. Tothis end the Work support is enlarged in the form of a rectangular block9 at the right hand end of which, viewing Fig. 1, there is provided, extending in the line of feed, a Welt guide 10 (Figs. 2 and 4) over whichthere is secured, by means of screws, a plate 1 which forms a fiat tablefor supporting the sole. The block 9 also provided. with a dovetailedWay 12 (Figs. 1 and 2') extending across the block in line with theneedle and swl. the bottom of this Way, at its inner end, is the usualopening 13 (Figs. 8 and 5) for the needle and. owl. Seeted in the Way 12is a slide 14 (Figs. 1 and 5) having formed therein an aperture 15 abovethe opening 13 but somewhat wider than said opening, and

provided at its inner end. with a gage 16 for the edge of the sole andwelt. Above the slide lei is a. plate 17 (Figs. 1 and 5) edjustabletowerd and from the edge gage 1.6 in the doveteiled way. Both the slide14 end plate 17 are held fest in any position of adjustment in the Way12 by means of s set screw 18 (Fig. 5). An adjustment of the slide 14:in. the Way 1% permits the line of stitching, or other welt attachingfastenings, to he placed nearer or rarther from the ed of the sole. Anadjustment of the plate 17 .in theway 12 varies the width of openingbetween the late and ed e "see thus me ing care of difierent Widths oweltiiig. The

variation in the Widths of the opening; 13 and aperture 15 permitsadjustment of the slide 14%- Without interfering with the operation of?the needle and ewl.

Beneath the sole supporting table 11, and in advance of the ewl andneedle, there is mounted on the block 9 a support 19 for the weltsevering knife. This support is attee-lied to the underside of thehlocl: 9 by means of screws 20, and its underside, where it projectsehove'the plane of the block 9,

I is utilized to form one side of the doveteiled tion in the bottom ofthe Welt guide. This guide finger is neverwithdrawn from its slot. Tofurther assist in guiding the l-rn'ife 21in its movement across the weltguide, the support 19 has mounted thereon a. plate '28 (Figs. 1, 2 and4) the upper edge of this.

plate and the underside of the Work table 11 forming it way in which theknife may slide. In order to actuate the knife its shank is providedwith a block 2'. hevin formed therein a ,slot 28 which is engegei byapin 29 on the underside of one end ol? a. centrally pivoted-lever 30,the other end of said lever being elongated'into an opereting handle 31(Figs. 1, 2 3). The lever 86 is mounted on thesupport 19 by means of apivot pin 32 and is normally maintained in the osition shown in Figs. 3end i by means 0 a coiled spring 33 surrounding the pivot of the leverand'heving one end secured to the support 19 and its other end securedto the lever. The movement of the knife 21 toward the left in Fig.

fl, under the influence of the spring 33, is

Conveniently mounted on the frame oi.

the machine is an arm 8% provided etits upper side withe pin 35 beneathwhich the strip of Welting may be led. from the Welt reel, or othermeans for supporting it, on its way to the Welt guide if end thestitch-form iiig mechanism. The forward 831501 the armfi is providedwith two sole marking devices 36 which are spaced apart a dis-- tenseequal to the distance between the zip-- per edge of the lmife blade 25and the plane of operation of the needle 1 for a "purpose which will he,made clear in connection with tlge descriptio ii oi the operation of thec me.

The resser foot 22, secured to the usual presser "foot lever 37, isprovided with an euierged bearing surface, as best shown. in Figs. 1 and3, for holding the sole upon the table 11 as it is fed through themachine past the stitch-forming mechanism. Projecting forwardly from thepresser foot across the sole and in the plane of operation of thestitch-forming inezhssiien, is on indi'ceting W finger 88 for, use inconnection with the marking fingers 36 as will now be explained.

In operating the machine to sew a welt completely around a sole, in themanner shown in- Fig. 6, the sole is first brought to the-markingfingers 36and its grain side at any desired place, usually at the insideY shank, is drawn across these fingers so as to produce two marks on themargin of the sole Such as are indicated by the lines o and Z) (Figs. 3and 6). These marks a and b are used, in the operation of attaching thewelt to the outsole, as the starting mark and finishing markrespectively. To attach the welt, the sole, after being marked, isplaced on the work table flesh side. down, as shown in Fig. 3, with theindicating finger 38 in coincidence with the starting mark a on thegrain side. The free end of the welt is thrust into the welt guide 10and positioned below the indicating finger 38, as shown in Fig. l. Themachine is then started and the stitching of the welt to the outsolecontinued, the work being fed by the awl 3 as usual, until the finishingmark 6 reaches a position of coincidence with the indicating finger 38.At this time the starting mark a has reached a position directly overthe Welt knife 21 owing to the fact that the marking fingers 36 arespaced apart a distance equal to the distance between the knife and theindicating finger. If, then, the operative draws the handle 31 towardhim at this time the welt strip is severed just at the point whereenough unattached welting' is left to exactly fill the space between thefinishing mark Z) and the welt end which was first secured to the sole.As a result the two ends of the welt meet and snugly fit when theindicating finger 38 again coincides with the starting mark a and thestitching is com pleted.

The knife 21 is preferably placed at an angle as illustrated, so as toproduce a beveled cut and form a joint such as is shown at c (Fig. 6) asthis type of joint where the two ends overlap is least-noticeable, butit should be understood that it is not essential that a beveled out bemade. Those skilled in the art will readily reco ize that by means ofthe marking and indicating devices, described, an exact meeting of thetwo welt ends can be obtained whatever the nature of the cut and insevering the welt strip may be.

A distinct advantage in the present machine, and an important feature ofthe invention, is in so manipulating and severing the welt that in thefinished sole the grain side of the welt, which is most conspicuous inthe finished shoe, is continuous and unbroken at the joint between thetwo welt ends.

While the resent invention has been described as em odied in a machinefor stitch &

ing the welt to the outsole, it'should be understood that it is not tobe limited to attaching the welt by this type of fastening alone, asobviously the invention may be utilized in connection with machines forsecuring a welt to an outsole by other means than a line of stitches.

The nature and scope of the present invention having been indicated andthe preferred embodiment-of the invention having. been specificallydescribed, what is claimed as new is 1. A welt laying and attachingmachine, having, in combination, welt attaching mechanism, a solesupporting table, means for feeding a sole and strip of welting pastsaid mechanism, a knife arranged with the plane of its blade at an angleto the face of the sole for severing the welt strip on a bevel. andmeans for actuating the knife in a right line path transversely of thewelt strip to sever it widthwise.

.2. A welt laying and attaching machine, having in combination, Weltattaching mechanism, a sole supporting table, means for feeding a soleand strip of welting beneath the sole past said mechanism, a knifebeneath the sole normally retained atone edge of the welt strip, andmeans for advancing the knife through the Welt strip from edge to edge.

' 3. A welt laying and attaching machine, having, in combination, weltattaching mechanism, a sole supporting table, means for feeding a. soleand strip of welting bencath the sole past said mechanism, a knife bladebeneaththe sole angular-1y arranged relatively to the sole face andprovided with a cutting edge at one end, for severing the welt strip ona bevel, and means for advancing the knife widthwise through the welt.

4:. A welt laying and attaching machine, having, in combination, weltattaching mechanism, a sole supporting table, a welt guide beneath thetable having oppositely disposed transverse slots in its side wallsforming a guideway, means for simultaneously feeding a sole on the tableand a welt strip through the welt guide, a knife movable acrossthe weltguide in said guideway to sever the welt strip widthwise, and means foroperating the knife.

5. A welt laying and attaching machine, having, in, combination, -weltattaching mechanism, a sole supporting table, means for feeding a soleand strip of welting beneath the sole past said mechanism, a knife bladebeneath the sole provided with a cutting edge at one end angularlyarranged relatively to the sole face and in advance of the weltattaching mechanism for severing the welt stripon a bevel, and means foradil ancing the knife widthwise through the we t.

6. A maehine for laying and attaching a welt completely around sole,having, in combination, welt attaching mechanism, a sole supportingtable, means for feeding a sole and strip of Welting past saidmechanism, a knife for severing the Welt strip arranged in advance ofsaid mechanism, means under control of the operative for operating saidknife, and means for indicating to the operative the time to operate theknife in order to produce an exact meeting of the two ends of the waitattached to the sole.

7. A machine for laying and attaching a welt completely around a sole,having, in combination, Welt attaching mechanism, a sole supportingtable, means for feeding a soleand strip of Welting past said mechanism,a knife for severing the welt strip arranged in advance of saidmechanism, means under control of the operative for operating saidknife, a device for marking the sole, and a finger past which the soleis fed for indicating to the operative, when in coincidence with themark, the time to operate the knife in order to produce an exact meetingof the two ends oi? the welt attached to the sole.

8. A machine for laying and attaching a welt completely arofjndra sole,having, in combination, welt attzud i'ng mechanism, a sole supportingtable, means for feeding a sole and strip of 'Welting past said mecha- 1nisin a knife for sever-in the Welt stri arranged in advance ofsaidmechanism, means under control of the operative for operating saidknife, a device having two marking members spaced apart a distance equalto the distance between the knife and the plane of operation of the Weltattaching inaalie mechanism for marking the sole in two places, and afinger for indicating to the operative the starting position of thesole,

guide beneath the table, knife. arranged in advance of the stitchforming mechanism,

and means for moving the knife widthwise across the welt guide to severthe Welt strip.

10. A machine for laying and attaching a welt completely around a sole,having, in combination, a table for supporting a fiat sole, stitchforming mechanism including an awl for feeding the sole and a strip ofwelting past said mechanism, a knife arranged in advance of saidmechanism for severing the welt, means under control of the operativefor-operating said knife, a

presser foot, and means including a finger on the presser footextending-across the sole for indicating to the operative the time tooperate the knife in order to produce an exact meeting of the two endsof the, Welt attached to the sole.

ADAM H. PRENZEL.

Wltnesses LU'Xfl-IER V RYAN, CLAUDE {3;RYAN,

